According to details given at the press event, the Optimus Prime that viewers meet in "Transformers: Rise of the Beasts" will not be the same as the guy they've come to expect, despite being once again voiced by Peter Cullen. Instead of the confident leader that fans know from both the Michael Bay films and the animated series, Optimus Prime in "Transformers: Rise of the Beasts" will be focused on finding his place on a new planet.
In "Transformers: Rise of the Beasts," Optimus Prime arrives from Cybertron in his G1 form as more of an ex-pat than anything else. The future protector of Earth has no human connections at the start of the film, nor does he fully understand the world that will now serve as a battleground for the conflict between the Autobots, the Decepticons, and the Terrorcons.
However, Optimus Prime will have plenty of opportunities to learn about Earth and its inhabitants throughout "Transformers: Rise of the Beasts." When Collider first revealed that Anthony Ramos had joined the cast, it was noted that his character would be in close contact with Optimus Prime. In addition, the press event pointed out that the movie was being filmed internationally, with scenes shot in New York and Peru, which may give Optimus Prime a chance to explore the planet.
No matter how it pans out, it should be a fascinating deep dive into a younger version of the boss Autobot.